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Full text of "Roland TR-505 Service Notes"



JUN. 1986 



TR-SOS 



TR-5Q5 



SERVICE NOTES 



First Edition 



SPECIFICATIONS 






Memory Capacity 


48 Preset Rhythm Patterns 




(Pattern Groups A, B and C, each 16 patterns} 




48 User's Programmable Rhyrnm Patterns 




(Pattern Groups D, E and F, each 16 patterns) 


Track 


6 (Max. consecutive 423 bars) 


Step 


1 to 16/measure 


Tempo 


J = 40 to 240 


Output 


Max. Level 6.5 Vpp 47K£2 (MONO OUT] 




Noise Level Less than -80d8m (IH FA) 


Tape In/Out 


600 baud 


Power Requirements 


9VDC (7.2V - 10.35V) 




or AC Adaptor BOSS PSA-100, 1 20 p 220 or 240 


Current draw 


30mADCat 9V 


Battery life 


Approx. 30 hours using SUM-3S 


Dimensions 


305 (W) x 175 (D) x 75 [Hi mm 




12-7/16" x 6-7/3" x 2-3/16" 


Weight 


820 gH lb. 13 oz. including batteries 


Accessories 


Connection Cord LP-2B 


Options 


AC Adaptor BOSS PSA-100, 120, 220 or 240 




Pedal Switch DP-2 






I 



+ 



Display Window - 
(2202073800) 
LCD 
(15029433) 



m ■% m % ■ 



Key Top 

(2248010700) 



Pot. 

RK12K1140 
IMC (132797941 
Knob 
(2248010300) 



-Pot. 
RK12K1240 
100KBx2 
(13279793) 
Knob 
(2248010800) 




-LED red 
SLP-1 44-40 
(15029144) 



-Top Case 
(2201068200) 






IS Roland 



PrintoH in lanan RH.9 



Jack Mono 

HLJ0521-OM10 
(13449133) 




- Jack Mini 
HSJ0807-D1-010 
(13449415) 



«, 



Jack Stereo 

HLJ0521-01-010 
(13449248) 



Bottom Case - 
(2201068300} 



f 



Socket DIN 

TCSO 707-01 -010 
(13429607) 



■ Jack 
HEC047Q-Q1-630 
(13449711) 



■ Switch 
SSSP12114A 
(13159111) 



■ Battery Cover 
(2202073700) 



EXPLODED VIEW ftjg@ 



Voicing Board 
(7314003000) 
(pcb 2292030703) 



* Battery Box Assy 
(23420S0700) 

Bottom Case 



(2201063300) 



Shield Cover 



(2225023802} 



Battery Cover 
(2202073700} 



Rubber Foot 

#34 




3x8 BH,P r Cm 
(5 pes) 




3 xl2mm BH r P, N : 
(3 pes) 



Rear Panel 
(2221076100) 



2.6x6 mm BH, P F N 
(6 pes) 



* Battery Box Assy 
Battery Box 
Terminal Plate ( + ) 
Terminal Spring {— ) 
Connector Assy 4P 



2202073900 
2345015500 
2345015600 
2341053800 




3 x8 mm BH, P, Cm 
(9 pes) 



SWITCH BOARD 
(7314004000) 
(pcb 2292030800) 



Rubber Switch (Pad) 
(12479791) 



LCD Board 
(7314005000) 
(pcb 2292030900) 
Rubber Connector 
(2343025100) 
LCD LD-B9106A 
(15029433) 



Top Case 
(2201068200) 



TR-SOS 



1. 2 . . 3 * 
BLOCK DIAGRAM 



8 9 



12 13 14 15 18 17 







1.5Vx6 



JUIM. 1986 



19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 38 37 38 39 4C 



Sound 
ROM 

JC11 



A13] 

m 

A15 



f\ 



Sound 
Dart 




Voice 



LJ R56 , 
r HC12 



DMUX 

COM 



IC13 
IMH ABC 



S/H&VCA 1. 



i. f 



2.5VDC 5.0 V DC 



cier 



B ii 



IC10 



Level CV ^ 



IC10 



Address 
Decoder 



>. IC7JCS 



DMUX 



COM 
IC14 



ENV 



PAN 



IC15JC16 



06-013 



t'Jianri/l JiiHtTr 



+9V 



LED 



V 



-V 



Switch Matrix 



n 



! L 



SWITCH BOARD 



C20 - C27 



icn 



i * H 



RESET St SCKCS 

LCD 
Driver 

IC201 

COM Q-3 gQ S2S 



CUM 

LA 




Amp 



IC18 



t— B- 



VOLUME 



i ~a 



LCD 



LCD BOARD 



J 



^l^D" 



W (MONO) 



*~" w Tj v riL 



i\ 



-U-^A\ A 



PHONES 



TR-505 BLOCK DIAGRAM 



JUN. 1986 



CIRCUIT DESCRIPTIONS 

GENERAL DESCRIPTION 

The sound reproduction system in the TR-505 works on 
a multiplexing. With this system plural sound data stored 
in a single sound ROM can be addressed in sequence 
from a multiplex address counter containing 8 13-bit 
counters- - - capabie of generating 8 different 
addresses concurrently. Then the multiplexed sounds, 
fetched from the sound ROM and converted to corres- 
ponding analog voltages, are sampled into the S/H 
capacitor of individual channels. 

The multiplex address counter has found application on 
some predecessors and its function and applications are 
explained on the service notes of TR -707/7 2 7 and DDR- 
30. Readers not familiar with MBH63H114 are re- 
commended to read the circuit description on these 
service notes. 

This section briefly discusses the multiplex sound 
system, concentrating on ROM addressing and limiting 
reference to the block diagram. 

Suppose a low Start Trig is applied to one of the XSTQ- 
XST7 of IC9, the assigned counter inside IC9 starts 
counting on a rising edge of a low XSTA (counter start 
enable-common to all channels), incrementing the 
counts on every falling edge of the input clock (one of 
XCK0-XCK7) (Table 1 ). At the output stagae 

of IC9 the channel is selected with the select code ABC; 
and its counts is represented in parallel 13 bits at A0— 
A12 pins. 

Since the number of bits required for sound ROM 
addressing is 17 the remaining 4 bits are prepared out- 
side the counter and routed to the ROM through dedi- 
cated address decoders. At the decoders these 4 bits are 
selected on the same ABC code as for IC9 counter, to be 
of the same channel and in synchronous with each other. 



GATE ARRAY 63 H 114 Multiple Address Counter 




























CLOCK GEN 






TIMING GEM 






































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(TABLED 



IC9 MB63M14 MULTIPLE ADDRESS COUNTER 


IC11 SOUND ROM 


CH NO. 


INPUT 


COUNTER 

STEP 


OUTPUT 


VOICE 


CAPACITY 
(Bytes) 


START 


PIN NO. 


CLOCK 


PIN NO. 


GATE ON PERIOD 


PIN NO, 





XSTOL 


33 


3CCKO-C 


56 


4Gpsec 


GAT0=330msec 


32 


OPEN HI -HAT, CLOSED HI-HAT 
(OH) (CH) 


SK 


1 


XST1-L 


39 


XCKi=D 


XCKi=l/2D 


57 


80us 


160^5 


GAT1= 
660ms 


GAT1= 
13?0ms 


31 


RIDE CYMBAL 
(RC) 


crash :ymbai 
CccJ 


16K 


3ZK 


2 


X5T2-L 


40 


XCK2=C 


59 


40:,. sec 


GATZ= 330msec 


30 


LOW TOM, MID TOM, HI TOM, TIMBAL 
(LT) (MT) (HT) [TIME} 


SK 


3 


X£T3=L 


41 


XCK3=B 


60 


20;=sec 


GAT3-1 64msec 


29 


BASS DRUM 
(BD) 


AK 


4 


XST4=L 


44 


XCK4-B 


61 


ZQusec 


&AT4^164msec 


28 


LOW CONGA, HI CONGA 
(LCG) (HCG) 


4K 


5 


XST5=L 


45 


XC&5=B 


62 


ZOnsec 


SAT5=l64nsec 


11 


SNARE DRUM 
(SD) 


4K 


6 


XST6=L 


46 


XCK6-B 


63 


20-.. sec 


GAT6= 164msec 


25 


LOW COWBELL, HI COWBELL 
(LXB) (HCB) 


4K 


7 


XST7-L 


47 


XCK7-B 


64 


2Gusec 


GAT7= 164msec 


24 


HAND CLAP, RIM SHOT 
(HCP) (RIM) 


4K 



The drum voices In the same channel can not be selected at the same time. |=|_ y. v >^ /^ #)$£§[ ^3£(if^)Ei$ [iiggtj ifc-tiA.-, 

The letters in parentheses are the abbreviation to be shown in the display. ( )rttt ^77 f -j Jf 1 i Trf'V'i Jn7>^B§lB^-"^T : 



DETAILED DESCRIPTION 

In this section the drum sounds are represented by 
CRASH CYMBAL {CO because its data occupies the 
largest memory space in the sound ROM with the 
addresses for its memory cells provided in somewhat 
unique way. 

Before entering CC addressing, let us review the standard 
application of the multiplex address counter IC9 for 
easier comparison. 

The channel select code ABC cycles the 8 counters at 
the clock C rate (in 4Qjus), so do ROM accessing and 
other peripherals (DMUXs, address decoders, etc.)(Fig, 
1 ). The LSB of IC9 should step at every 40us. 

With the clock C used as an XCK (counter input clock) a 
counter advances on a falling edge of the clock C: its 
counts should have changed every time it is selected by 
the ABC code. At its full counts the 13-bit counter has 
generated the address needed to access a data set of 8k 
byte in 330ms [Table 1), 

With CRASH CYMBAL selected on the panel, XCK1 for 
counter channel 1 is the clock 1/2 D. This slows down 
the counter step to IGOjLts, allowing the counter to run 
for 1320ms, the time necessary for the 32k byte length 
CC memory locations to be completely accessed. 
However/the counts of CH1 remains the same through 4 
selection cycles. To have the CC address keep pace with 
the 40jus steps, clock D is positioned at the LSB of CC 
address and placed on A13 line, and 1/2D is at the 2nd 
LSB and placed on A14 line (Table 2). The bit set of 
counter CH1 is shifted up by 2 orders. The table 2 shows 
the exchange and reposition of address bits. 
The main purpose of this bit order rearrangement is as 
follows. The CPU IC3,once defines the range of CC 
location with A16 and A15 f can render up the manage- 
ment of the memory area to tC9 (Table 3). tCS 
by the adoption of clocks D and 1/2D can automatically 
generate 15-bit address without having A13 and A14 
coded by the CPU at every termination of 8k byte 
address. Note that the similar conception is applied to 
RIDE CYMBAL but counter CH1 is shifted up by one 
order and the XCK1 clocks at the D rate. 



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y- h 7 uA SfflCDlElSS (TK.^'^3- if , DMUX ) 

U«irto X>32K/^ K*«-Wti1*ft»i?;ttvA 

£ t ? ^ i • ^ y^^com^, XV > * fCBDt) 5XCK1 
C H 1 Mt #$ ^ h T ■■» /UT^ < ©T*^- h7U^©f"F 
i^-^ > K ROM^^ET, C©A **TttT K^^. ^37 

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TIMMING CHART 


(CRASH CYMBAL) 


* < £ > y - 


**-h (Fig. 1) 


C\-\ 


1 |2|3|4|5 | e [ 7 || l|2 

I j i : i ; | : 

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CLK2 


J | 4 | b [ O | / | U | 1 | I | 

1 

1 

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1 
1 
1 

1 
1 
1 
1 
1 

1 


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CLK A 
CLKB 


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i 

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i 




i 


i 


CLKC 






40jj$ ! 


1 

1 
1 




i 


i A 1^1 


"■ *j 




CLKD 








"i 








i 

i 


JA141 








CLK1/2D 












160jus 


i 
i 










i 






AO 
A12 











SOUND RO 


VI SELECTOR (TABLE 2) 














Ao 


Ai - Aj z 


Air, 


Ait 


Al5 


Ai* 


cH 


Bytes 


OPEN HUHAT 
CLOSED HI -HAT 


(OH) 

(ch; 


ADo 

AD 


ADi - ADi 2 
ADi - ADii 




1 


l" 

1 


1 
1 


1 
• 1 





8K 
SK 


CRASH CYMBAL 
RIDE CYMBAL 


(cc; 

(RC) 


AD 
AD* 


ADl - AOis 
ADi - AD is 



D 


1/2D 





1 


1 

1 


1 


32K 
LEK 


TIMBAL 
LOW TOM 
HI TOM 
MID TOM 


(TIMB) 
(LT) 
(HT) 
(MT) 


ADo 
ADo 
ADo 


ADi - AD 12 

AD 3 - ADi? 
ADi - AD 12 

ADi - ADi? 




1 


1 





1 

1 















2 


SK 
8K 
8K 
8K 


BmSS drum 


(bd; 





AO i - AD 12 













3 


4K 


\m CONGA 
AIL CONGA 


(LCG) 
(HCG) 


1 
1 


AO ; - AD i 2 
ADi - AD i 2 




1 












4 


4K 


SHARt DRUM 


(SD) 





ADi - AD 12 


1 










5 


4K 


LOW COWBELL 
HI COWBELL 


(LCB) 
(HCB) 


1 
1 


AD . - AD : 
ADi - ADi* 




1 


1 
1 








6 


4K 
4K 


HAND CLAP 
RJM SHOT 


(HCP) 
(RIM) 




c 


ADi - AD is 
AD i - AD 1 2 




1 


1 

1 








7 


4K 




(CPU) SOUND SELECT SIGNAL 



CPU 
PORT 



P50 



P51 



P52 



P53 



P54 
P55 
P56 



PIT 
NO. 



17 



18 



19 



20 



21 
22 
23 



"Hi" 



RC 



HT, MT 



HCG 



LT^MT 



HCB 

CH 
RIM 



"Low" 



CC 



LT, TB 



LCG 



HT, TB 



LCB 

OH 

HCP 



SOUND ROM MAP (TABLE 3) 



TIHB(8K) 



LT(8K) 



HT(8K) 



MT(8K) 



BD(4K) 
LCG(4K) 



SD(4K) 
HCG(4K) 



HCP(4K) 
LCB(4K) 



RIH(4K) 

HCB{4K) 



CC(32K) 



RC[16K) 



QH(SK) 



CH(8K) 



Ait Ai 5 Aiu At 3 Ai z- Ai Ac* 



1 



(2n)=EVEN 
(2n+l )-ODD 



An A 1-. 



1 
1 
1 



1 1 0^0 

Al3 

1 1 j' 



1 



1 



I 



Ao 



Ad 



Ab 



Ao 



G(2n) 
l(2n+I) 



0(2n) 
l(2n+l) 



0(2n) 
l(2n+l) 



0(2n) 
l(2n+l) 



Ao 



Ao 



Ae 



TR-505 



JUN. 1986 



TESTING 

The built-in test program executes the following tests 
while in the TEST mode. 

Test program version 1.0 (EFE.SN.6301 00-690699) 
Test program version 1.1 (EFE.SN.690700-UP) 

CAUTION: Save user's program onto a cassette tape 
before entering the TEST mode. All the 
data in the backed up RAM IC1 will be 
erased in TEST 3. Factory preset can be 
reloaded at TEST 8, while the user's after 
completion of the TESTS. 



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( as ) 



SAVING USER'S DATA 



zL—$-T-9<r>±-? 



1, Connect TAPE IN/OUT jack to a tape recorder. 

2, Start the tape recorder with record mode. 

3, While holding SHIFT key down, push SAVE key 
(MAIN KEY 14), then ENTER key. 

The display reads as shown below indicating that the 
TR505 is now saving data. 

For about 5 seconds after ENTER key is pushed, the 
pilot tone is heard, followed by the modulated tone 
which carries the data. 



c 

-I 



4. When the saving sign disappears, stop the tape re- 
corder* 

5, Go to the verification step. 



VERIFICATION 



1. Change the connection on the tape recorder to OUT 
jack (HEADPHONES or EARPHONES). 

2. Rewind the tape, start the tape recorder and hear 
the pilot tone. 

3. While holding SHIFT key down r push VERIFY key 
(MAIN KEY 15), then ENTER key. Upon pushing 
VERIFY key, the display will show as shown below. 

When verification starts, TEMPO indicator lights. 
To stop verification, push MAIN KEY 1. 

* If the dis play reads error message 

Repeat the verification procedure with different 
volume settings. 



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VERIFY 



ERROR 



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RUNNING TEST PROGRAM 



While holding down CLEAR and INST/METRO, switch 
the power ON. The unit is now in the test mode and the 
LCD wilt display as shown below. 



TftACR 




PATTERN 


MODE 












TRACK 






1 
t 








Version 1.0 



Version 1 .1 



Pressing a MAIN KEY [T] — [To] selects a test 1-10, 
respectively. Upon completion of test 1 r 3, 4, 6 or 7 ', the 
display will indicate a result as shown in Fig. A or Fig. B. 






m 

i i 



3 






TEST 1 (OK) 



TEST 3 (NO GOOD) 



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CLEARS INST/METRO #£ :/*|slll$K:ff L/tttf* 
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^ 






^ 






Perform the following tests in the numerical order. 



TEST1. SWITCHES READING 



Push MAIN KEY[T] . Push the 31 buttons on the front 
panel one by one in any order, checking LCD for small 
" O " reading at each pushing, Fig. C. With Ver.1.1 also 
check for a RIM SHOT sound. After the 31st button 
check the Test 1 result, like Fig. A or B. 



test 1 



t 



u 



NOTE: Escaping from TEST 1 before the 31st key is 
impossible, 



TEST 2. LCD LIGHTING 



Push MAIN KEY [2]. The LCD will light all the dots and 

then half of the dots, and repeat. 



■TEST 3, RAM IC1 RE ADING AN D WRITING 



CAUTION: TEST 3 erases the customer data in RAM 
IC1. Make sure the data is duplicated on 
the tape. 

Push MAIN KEY [3] . The CPU writes a test data into 
RAM IC1, reads back the data, verifies it and displays 
the results. Fig, A or B, 



TEST 4. MIDI IN/OUT 



Push MAIN KEY jT|. The LCD will display '^ {-' 'mark. 
This does not mean "no good". Connect MIDI IN and 
MIDI OUT via MIDI cable. The CPU Collates processed 
"MIDI IN" data with the "MIDI OUT" data and dis- 
plays the result. Fig. A or B. Remove the MIDI cable. 



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TR- 



TEST5, TAPE SAVING 



7Xh5. 7—y • fe-7»ft 



Push MAIN KEY {s\ . CPU will develop a 2400 Hz (Ver, 
1.0) or 1200 Hz (Ver. U) square wave at part 35 {pin 
53). Connect the scope to TAPE IN/OUT jack and 
verify the waveform as shown below. 











r 






(Version 1.0) 












c 


L O 
C i 





(Version 1.1} 
Disconnect the scope. 




/4 >*-Qsj£ftU:£l-o CPUOtf-h 3 5(PIN53) 
^6li 2-400Hz ( 7^ Y ■ 7°pfH -^-y =* > L0 
<£>*§-& )Xfi. 1200Hz (fXh »y-D/7A- •*— $> 
3 > L 1 CD^ ) ©#k^6a>** £ tl, TAPE - I N/OUT 

i/.y? h&TAPE- I N/OUT ->* :^ ^tcftJSU Cfl£ 



TEST 6. TAPE LOADING 



Push MAIN KEY [6]. The LCD will display '-JJJ' mark. 
This ddes not mean "no good". Connect an Audio 
Generator (AG) to TAPE IN/OUT jack and set the AG 
for a 200mVpp, 2400Hz r square wave. 
The display should change as shown in Fig. A as long as 
the signal is being fed to the unit, Disconnect the AG. 



r^he. r-y • °- K»tt 



> -f > * -1.6 1* wu ito ^ omm r\ $. -r "-/ ; 



«j j_» 



^KlfiKU 200mVpp , 2400Hz , Se^feJC .-fe 2 Kl 
t.eD*^j&*A;ft3ftTUSnKtt, Fig. At&X^fCftS 



TEST 7. START/STOP JACK 



Push MAIN KEY [7] . The LCD will display 'lJJ-\ This 
does not mean "no good". Connect an open-circuit plug 
into START/STOP jack; CPU port 26 will be pulled up 
to "H" level. The result is either as shown in Fig. A or B. 
Pull out the plug from the jack. 



TESTS. FACTORY PRESET 



Push MAIN KEY [|] . When the preceding tests 1 
through 7 proved to be successful, the CPU transfers 
the factory preset data from internal ROM to RAM [CI. 



7^h7. START/STOP y * y ?»ft 



*S*5%3n4To START/ STOP £? + '7 'JVC^-^fV ■ 
7"7^£i£ttkTT£l\> CCPU#-h"2 6*** H " u 



7Xh8- HtBSBf-*Ȥa* 



fi^<j*Tur^nfi'c p uii, rtflSRo-M^t ram 

( i c i ) icxm&ffi^r- $ &m&&tto 



TESTS. TEMPO DISPLAY 



Push MAIN KEY \W\ . The LCD shows the tempo speed 
set by TEMPO. (Max, = more than 240, Min. = less than 
40}. 



TEST 10. LEVEL DATA (DAC OUT} 



Push MAIN KEY |To] * Connect the oscilloscope to the 
cathode of D10 on the voicing board and verify the 
waveform below. 



. 








~* Xmjec * 





Version 1 .0 X - 3.3msec 

Version 1.1 X = 1 .9msec 



xz h 9 - f?>#&m 



j 4 ;"*HI]£ffU£*fo 7-v#v*iT-Wi%-*titZTV 
mmm ( ft*2 4 Rh~ft/,h 4 EJLT ) 



x*M0. U^^- T-'-*D/ASBMttif* 






RETURN TO NORMAL MODE 



Push MAIN KEY |l6| for returning to the normal mode. 



»»*- K^ 



IfifOD^- Y^m&iaZJ A >4HS|*W^TT^^o 



LOADING USER'S DATA 



Jl-U-'-T-^OQ- K 



1. Connect TAPE IN/OUT jack to a tape recorder 
{HEADPHONES or EARPHONES Jack) 

2. Rewind the tape, and start the tape recorder, 

3. While holding SHIFT key down, push LOAD key 
{MAIN KEY 16), then ENTER key. Upon pushing 
LOAD key, the display will show as shown below. 




When loading starts, TEMPO indicator lights. 

UDon completion of loading the LCD reading goes 

off. 

IC DATA 



1. ^ftCDTAPE I N/ OUT ^^ ; ^f-/l/^-^" 

£Oo 

3, SHIFT & — &¥tV-&¥t>* LOAD + -( MAIN 
KEY 16), i UTENTER*-*ffU4fo 
LOAD *'— ♦#bft BftfeT? LCD fi£ ^ri© J; 5 &** 

a- h^W?^££> LCD±CD",(_ h *-2J)m$L 



CPU HD6301Y0A99P 
(HD6301Y0A51P) 

Pin Configuration 
(Top View) 




Port Assignment 



FIN NO, 


PORT 
NAME 


DESCRIPTION 


1 


Vkk 


GND 


2 


XTAL 


terminal, Xtal 


3 


BXTAL 


terminal, Xtal or external system ulotk In 


4 


MPO 


input. MCLJ mode setting pulled up +5V 


b 


MP1 


input, HCU mode setting pulled up +5V 


6 


RES 


Input} MCU reset (active low) 


7 


STBY 


unused, pulled up +5V (active low) 


8 


NMI 


unused, pull '.■ d u p + S V 


9 


P2 


in:Ji:l, TEMPO CLOCK 


10 


P21 1 uiiptiit , '.'1.111'i . !m-. i-i-ic: llvl 


Ll 


P22 ouLput, Channel Selector C 


12 


P23 


Input, MIDI IN 


13 


P24 


output, MIDI OUT 


14 


P25 


output, Channel Selector B 


15 


P26 


input, START/STOP 


16 


P2 7 


input, TAPE IN 


17 


P50. 


'- 


(RC/CC) 


18 


P5I. 




(uT,MT/ir P rB) 


19 P52 




{tiCQ/lCC) 


20 P53 




^Output, Sound Selector (LT,MT/HT,TB) 


n 


P54 




(HCB/ICB) 


22 


P5 5 




{CH/CE} 


23 


P55 


J 


(RIM/HCF) 


24 


F57 


output, Enable 


25 


P60 


- 


output, (Channel Selector A) 


26 


P61 






27 


P62 




' 




28 


P63 




^output, Start Tripper 




29 


1'6A 






> output, Level Data 


30 


P65 








31 


P66 








32 


P67 


J 






33 


Vcc 


input, +5 power supply 


34 


P4? 


} 




35 


P46 






H: 


P4 5 






37 


P44 




> input , Data Bus 


38 


P4 3 






39 


P42 






40 


P41 






41 


P40 


J 




42 


Vss 


GND 


43 


P17 


^ 




44 


P16 






45 


I'15 






46 


P14 




?output t address Bus 


47 


P13 






■>.H 


P12 




i 


W 


Pll 






50 


P10 


J 




r ^ 


P37 


output, LCD C5 


52 


P36 


output, LCD SCK 


53 


P35 


output, TAPE OUT 


54 


P34 


output, (CS) 


55 


P33 


output, (WE) 


56 P32 


\ 


57 F31 


)■ output address Bus 


58 


F30 


r 


59 


F74 


J 


60 


P73 




y output* scanning signal to KEY 


61 


P72 






62 


P71 






65 


P70 


output n LED 


64 


E 


unused, system clock 1MHz 



TR-505 



JUN. 1986 



GATE ARRAY 
RD63H114 



Multiple Address Counters 



Pin Configuration 

(Top View) 

51 33 

mil 



iliilii 




5 in i flame 


PIN 


name 


Flh 


name ' 


1 \ INHO* 


23 


:s" 6 


45 


x G i - 


2 1 ADRC 


24 


GATE? 


46 


XST6 


3! A 


25 


GATED 


u 7 


X5f7 


4 1 D 


26 


VDO 


48 


TSTt 


5 \ B 


21 


GATE5 


4 9 


TST? 


6 A0R7 


23 


GATE4 


50 


XSTA 


7 I C 


29 


GATE 3 


51 


MSEL 


8 A0R6 


30 


GATE 2 


52 


CLK \ 


9 A0R8 


31 


GATE 1 


S3 


CLK2 


10 


vss 


32 


GATED 


&4 


CLK3 


1 1 


AC-R9 


33 


XRES 


Sh 


CLX^ 


12 


ADR 5 


3^ 


OSC i 


56 


XCKO 


U 


ADR 8 


35 


5C0C 


57 


XCK 1 


14 


ADR 4 


36 


5C01 


56 


VDD 


15 


AJR3 


3? 


C LK 


55 


XCK 2 


16 


ADRA ; 


36 


XSTO 


5 f.-;; 


17 


ADR? 


39 


XSTI 


61 


^CKh 


18 


ADR J 


-1 


XS72 


62 


XCK 5 


19 


A0R0 


41 


XST 3 


63 


;•../=• .- : 


20 


CSTO 


12 


VSS 


64 


XCK 7 


2\ 


CST2 


43 


XOUT 


^ 


.<^*" 


n 


CSTi 


■\L 


\\\ A 


^ 


r^> 



DESIGNATION 


PIN 


DESCRIPTION 


I/O 


CST Q 
2 

4 
6 


20 

21 
22 
23 


^ *% counter 
> pulled up }y continue Btart counter 2 
| (+5V) J counter 4 

counter 6 




XST A 

1 
2 
3 
4 
5 
6 
7 


50 
38 
39 
40 
41 
44 
45 
46 
47 


" 


XSTO-XST7 enable, active low 

counter 

counter 1 

► counter start, active low counter 2 

counter 3 
counter 4 
counter 5 
counter 6 
counter 7 




XCK 
1 
2 
3 

5 
6 
7 


56 
57 
59 
60 
61 
62 
63 
64 


, 


counter 

counter 1 

i counter counter 2 

clock input counter 3 

counter 4 
counter 5 
counter 6 
counter 7 




XOUT 


43 


address (AJDRQ-AMC) out enable, active low; higb-Hl z 




ADR 
1 
I 
3 
k 
5 
6 
7 

e 

A 
B 
C 


19 
IS 
17 
15 
14 
12 

b 

9 

H 

16 

13 

2 




y ROM ADDRESS 

















A 

C 
E 
INHO 


3 
5 

7 
4 
I 


- 


•\ MUX.DMUX 100k Hz 
I channel ~\ system clock 50kHz 
* select V for 8 25kHz 

J counters 12. 5kHz 
DMUX inhibit 










OSCI 

scco 

SCDI 


34 
35 
36 


> Internal 
y clock 
J generator master clock out K6HU& 


I 





CLK 
1 
2 
3 
4 


3? 
52 
53 
54 

55 


system clock" in 


I.6KH2 


1 
& 






v 






MUX 
inhibit 


nc 

latch clock 


- ROH 

cbip enable — ■ 


XRES 
MSEL 
TST1 

TST2 
Vbb 
Vss 
VDD 


33 
51 
4fl 

to 

42 
26 


reset pulse, active low 

counter 12/13 bit select pulled down 
"V IC teat pulled down 

% GNE 

power supply +5V 


1 
I 
1 

I 


GAT 
1 
2 
3 
4 
5 
6 
7 


32 
31 
30 
30 
29 
28 
25 
24 


y counter gate output Hi-counter running 














CHECKING IC9 MBH63H114 

The gate out pins GAT0-GAT7 of IC9 will indicate the 

status of mated counter. 

While a counter is running, its GAT pin stays high. The 

high period of each gate is shown in the table 1 , 

(See page 3 ) 

Example: BASS Drum won't sound 

1. Connect a scope to IC9 pin 29 GAT3, 

2. Set the unit to TRACK PLAY mode. 

3. Tap BASS DRUM Key {MAIN Key [1]) and verify 
the waveform as shown below, 

, GATE TIME 



■ 164msec 



<r-f?H (MBH63H114) *SW£OtVh 
Stftt^BrffiB, y-.r7 u^©S5*K"FCD^ftT*l*1- 
5*ri*aj*£To y'-hT \s<i(D¥- V CGAT0-GAT7) 

^S^*tJ£-r^y-h * ^«- TABLE. 1 IZ^bttc 

(See page 3 ( 

m. bass druivi^, ^mv 

WBfctfXtU TRACK- PLAY^r- KfCA&tT* 

^~* TJV • 7*U"-f T^ * /^±©MAIM ' KEY [I] 
( BASS • DRUM) *#U£Tc IC9©29#tV 

c gat -3 ) KTBoj: 5^mE*saiji$nntfy-h 

(BASS DRUM) 



1 — ' A MAIN KEY pressed 



JUN. 1986 



PARTS LIST 



CASING *r-7> 



IC 





2201068200 


Top Case ±4—* 






15229825 




2201068300 


Bottom Case Tfr— X 






15179244 




2202073700 


Battery Cover M : &ti'^ 


- 




15179247 




2342080700 


Battery Box Assy (including the foil 
*»** v ? ^^J3tp n p (TIB 4S?tC) 


owing 4 parts) 


15179750 
15179340 




2202073900 


Battery Box 


«jfi#-y?^ 




15179317 




2345015500 


Terminal Plate (+) 


ffi^ffi 




15219164 




2345015600 


Terminal Spring (-) 


y^~FUS 




15169516 




2341053800 


Connector Assy 4P 


U- Kfr=i:?^£5£j£q n q 




15169532 




2202073800 


Display Window 


LCDA/^— 




15169533 


- 


2221076100 


Rear Panel 


UT^^JU 




151591051 
151591131 




KNOB, BUTTON, KE ??t *», 


#->r/7 




151591151 




2247036700 


Key Top (large) 


gray I E — ju K 7 ^ 5 


(*) 


151591161 




2248010700 


Key Top (small) 


white ^c — }^¥v~7\ 


(*) 


15189136 




2248010800 


Knob 


white Ay~?k 




15229712 




PC B ASSY SS^fiScfn 






TRANS IS1 




7314003000 


Voicing Board (pcb 


2292030703)ftai*K 




15129137 




7314004000 


Switch Board (pcb 2292030800) j*-f-y?s*S 


15129601 




7314005000 


LCD Board (pcb 2292030900) lcdSS 




15129612 




LCD ftASqilt 








DIODE ' 




15029433 


LD-B9106A 




. 


15019125 
150192091 




COIL la-OU 








15019405 




12449272 


GM-50510152 


line filter ^< > 


7-< JU£ 


(or 15 
15019413 




JACK, SOCKET 5M 






(or 15 




13429607 


TCS 0707-01-010 


DIN 


MIDI IN, MIDI OUT 


15029144 




13449711 


HEC 0470-01-630 


AC adapter 


DC IN 9V 






(or 13449706 


HEC 0470-01-230) 






RESISTOR 




13449415 


HSJ 0807-01-010 


mini 


TAPE IN /OUT 


13910103 




13449248 


HLJ 0521-01-010 


stereo 


PHONES 


13919118 




13449133 


HLJ 0521-01-110 


monaural 


R/MONO, L, START/ STOP 


CONNECT 




SWITCH *4y* 








13439320 




12479791 


Rubber Switch (pad) 


dJA^< j=f- 




13439296 




13159111 


SSSP 12114A 


POWER 




13439297 
13439321 


. 


POTENTIOMETER 


#-y*-i 






234302510 




13279793 


RK12K1240 


100KB x 2 


VOLUME 






13279794 


RK12K1140 


IMC 


TEMPO 


WIRING A! 

234105150 




CERAMIC RESONATOR 






234105160 




12389729 


CSA 4.00MG 


4,0MHz 








12389735 


CSA 1.6MK 


1.6MHz 




MISCELLA 

13629141 
13549123 




r 








12569105 










234306750 












12569255 












222502380 











TR-B05 


IC 

15229825 




MB63H114PF 




gate array 


15179244 




HD6301Y0A51P 




CPU (Ver.1.0 SN. 630100-69099) 


15179247 




HD6301Y0A99P 




CPU (Ver.I.l SN.690700-UP) 


15179750 




TC53100QP-7453 




CMOS mask ROM (Sound ROM) 


15179340 




HM6116LP-4 




CMOS S-RAM (SN. 630100-645599) 


15179317 




TG5517APL 




CMOS S-RAM (SN.645900-UF) 


15219164 




yPD7225G 




LCD driver 


15169516 




TC74HC02P 




H CMOS quad 2-input NOR gate 


15169532 




TC74HC51P 




H CMOS dual 2 wide-2ixiput AND/OR gate 


15169533 




TC74HC151P 




H CMOS 8 to 1 line data selector/multiplexer 


15159105HO 




HD14013BP 




CMOS dual D-type flip-flop 


15159113HO 




HD14051BP 




CMOS signal 8 channel multiplexer/demultiplexer 


15159115HO 




HD14066BP 




CMOS quad bilateral switch 


15159116B0 




M4069UBP 




CMOS hex inverter 


15189136 




M5218L 




Op , amp 


15229712 




PC- J 00 




photo coupler 


TRANSISTOR 


h7>y^Jr 




" 


15129137 




2SC2603-28-F 




NPN 


15129601 




2SD666-C 




NPN 


15129612 




2SD1469-R 




NPN 


DIODE Jf-f*- 


- K 








15019125 




1SS-133 






15019209TO 




S-5500G 




rectifier gflfeS 


15019405 




MTZ5.6B-T7 7 




5,6V zener 7it- 


(or 15019525 


RD-5.6EB-2 




5,6V zener) l ^it- 


15019413 




MTZ5.1B-T77 




5.1V zener 7it- 


(or 15019523 


RD-5.1EB-3 




5. IV zener) Vn±- 


15029144 




SLP-144-40 




LED red 7it- 


RESISTOR ARRAY 


S»TW 






13910103 




RGSD8 x 103 J 




10K x 8 


13919118 




RGSD16L104G 




R-2R ladder network (D/A converter) 


CONNECTOR 


a .*.?* 






13439320 




IL-S-4P-S2T2-EF 




4P (Voicing pcb) 


13439296 




IL-S-7P-S2T2-EF 




7P (LCD pcb) 


13439297 




IL-S-8P-S2T2-EF 




8P (Switch pcb) 


13439321 




5124-03BHPB 




3P (Switch pcb) for LED 


2343025100 








rubber connector for LCD 


WIRING ASSY 


■j- 


- Kf*a*££ ' T y-b>7 1 ) 




2341051500 




7P (Voicing pcb) 




t-90mm 


2341051600 




8P (Voicing pcb) 




£=90mm 


MISCELLANEOUS 


f Oft 






13629141 




Philips 122.5109- 


lOyF 16V 


13549123 




polyester film ca 


pac 


itor 0.033]jF 50VJ 5% 


12569105 




dry cell SUM-3S I 


,5V 


#=f£^>ih 


2343067500 




connection cable 


LP- 


25 $m^-t 


12569255 




Lithium battery M2B- 


C200 3V 'J?*A«>-fe 


2225023802 




Shield Cover (for 


Bottom case) v-;uK;frA- 



1 2 3 4.?'* 
LCD BOARD 

7314005000 (pcb 2292030900) 



8 



10 11 12 13 14 15 16 1? 

SWITCH BOARD 

7314004000 (pcb 2292030800) 



I 



r 



a Ǥ&* 






«« 






O <Q 



-» 

x 



I: x g 



j--. 



i • j?" 



ru | 



~~ ,[ y - 



■r 




imn 






L 

M 

N 


p 

Q 
R 

€L 

■*% 

7 



^ >DDh £■ 



® 



::: 



Wj 



ADVARSEL! 



Lithiumbatten- Explosion stare. 

Udskiftning ma kun foretages at en sagkyrKlig, 

og som beskrevet i servicemanoaL 



Lithium batten ma kun udskiftes med samme type 
og fabrikat. 



ADVARSEL! 

Lithiumbatten. Fare for ekspfotion. 

Ma bare sksftes av kvalifisert tekniker som 

beskrevet i serviceman ualen. 



Lithium batten ma kun utskiftes med samme type 
og fabrikat 



VARNING! 

Lithiumbatten, Explosionsnsk. 

Far endast bytas av betoorig servicetekniker. 

Se instruktioner i servicemark len 



Lithium batten for endast ersattes med samme typ 
och fabrikat. 



VAROITUS! 
Lithiumparisto. Rajahdysvaara. 

Parislon saa vaihtaa ainoastaan 
alan ammottimies. 



Kun vaihat lithium pariston KAYTA saman valmista- 
ian samaa tyyppia. 




\\ 

TR-505 SWITCH BOARD 
ASSY 73140040 00 

UlRoland A " pc 94HB 



:» 



* 



'%.. '';:** 






ENTER 
■53fc 



m \ 




#^1 # , ff|S # 







VOICING BOARD 

7314003000 (pcb 2292030703) 




L 



~? 



L_p 



l_n_rt±>, UhLrU *•»■' 

*--l t>i i~* i- m 



ear 



t u a>tr 

3 , ,Xi 



! q I 



9 " £5 

i ( { ^ 

LQJ , 



Q 



\ffl W!D Q 



r ^ r 



i 



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tN i- w 
-& -fc Ul 

— ^-H**& 



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91H 



::::: \\\\ j 

ssy. : — 

Ida — * 

zia — ; 14 

• eey — 
■ sty — 

axQUD 
n , n , 

^ _L- .— J- 

— TfOT 



1 31 "- 



2] iT^HiL^i^ 




3HD £2 

£0 >* 



10 1 I 01b — 

."no o ic 3] qu _ 

1 I I I Q I CM*, ft ^ ?$ 

"Si 



£31 



! £3I| 



±# 



TR-505 



JUN. 1986 



B 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 3S 



View from foil side 

■ t % w 






.■<■ -■., •. 



DII7 §T 



/? 



& 7™T- V^X - TEMPO 



SIST LA 




&= 














SHIFT 



-i=k4 -«P# •e 1 * ... •i^.' 



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' 



.• '-" .'■•• "" ' 



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3Hf?6 OdAJ*^ 



— 




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frfrd — 
£td — 



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J38d ^g I _J 1 






ZTO Hh 






i r r r 1 



0fry ' 

®^y — 
ax mm sea 

o : , ; h :;: ■ ■ ■ h 

►-* T" ro T" 



gsa 



si E S 





■ f c& say 



s>ir 
— 50iy 



™ d£3 Hh 315 Q | 

-*— «* v 89d r^ 



T2S CID .±21= &iu U VJ V> U 

~~ j— : __i I ^-' ►=•_■"' atp3 sir3 sen /^x 



8fr0 63rO 0£3 fi 



ZN W ^^ 





l£3 




£9d 




09y 



m CD £ 



0S3 /^^ 

30 id ^-<y 



-I J- fr9U ZD 



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65 3 



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CO ffl v fin 
ffl 1 (D olJ, 



231 



I M 



Irf^yJ^ 



=^v 



■'•■ : ■■■■■ ■ ■ ■ : 

nnnn 

ro - ru ro ro ru ro ro ro 

q i— ro m ^-uio)^ 



t3J5JlS 

9£3 QJ OD 




?dA 



1>.D 



■ 0TD 



931 






puepy^j oo 0£00t7]2/ ASSO 
QddOa 3NI3I0A S0S-dl 



t 2 3 A 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 2 
CIRCUIT DIAGRAM 




20 21 22 23 24 2S 26 27 28 29 30 31 32 33 34 35 36 3? 38 39 



DAC 



9 


R5E 
fiGSD- 






■ 


i. 




■• 








tr -505 MIDI IMPLEMENTATION 



THAW3MITTED DATA 



2. 



RECOGNIZED RECEIVE DATA 



Description 



Statue 
1301 nnnn 



Second 
Okkk khkk 



1001 nnnn Okkk kkkk 



third 

ceeo ccoo 

Qvvv vw%- 



Daacription 



1001 nnnn Okkk kkkk Owv vvvv 



Mote OFF 



Not* ON 
kfckkkkk 
vvwvvv 



•LH,b4 ,30 . 96 . 112, 127 



1111 00 1Q 0**tt KXXX VftT TTTT 



nil tooo 

1111 I0L0 

nil ion 

nit noo 



Sons PaiLtiin : j C.lnLer 
XKkkktcj: Leant a i gni f leant 

KXXXXXX: HO*t * 3 En I f - "»ni 

3onr S*lcct 

aeeeiia = Q-s j tnok t 1-61 

Ttnin( CleeN 
Start 
Continue 
Stop 



Not** : 

il Traftakl tted channel for each mttiuient can he chAAf«d 

to 1 - 18, and. Isiirirrd. 

*Z Wot* nuaher for each inatruaent can* be changed. 



*3 vvwvw La icC at follow., 
accent level 



VVvv v V y 



not given 


44 


1 


64 


% 


90 


3 


96 


4 


112 


5 


127 



tl 

'1 
*2 
13 

■ 4 
IS 



'6 
*5 



■ 4 When the Hniure ia met < 

*5 Vhen MIDI smc node ii an, the unit tlranmta these aeaaegee 
r^ewlv^ii fron MIDI IN, 

*5 When the track t La *et . 

track t iiiHii 



1011 bbbb 
1011 bbbb 



0111 1100 
0111 U01 



0000 oooo 
oooo oooo 



Not* on 

kkkkkkk =25-99 

vwvv^ s l - 127 

OMKI OFF 
OMNI ON 



*1 
*2 



1111 0010 Oksck. kkkk Ojryjr YY7T 



1111 1000 

tin ioto 

1111 ion 

n n uoo 



3onf Poaition Pointer 


*3 


Kb£Xbe±rf*: Lent HlfnlfiCiAt 


T4 


jtttttj' Moat *ignific%ftt 




Soitf 3al*ct 


*3 


aaaaaa* - 0-5 (track * ;-*i| 
TlPini Clock 


*4 


*4 


Start 


M 


Continue 


*4 


Stop 


M 



'Mete* : 

1 "i Received -harir-cl * -*rj bt iSinfifed to 1 -15, and aeeoriiec- 
The loundi Liate-d below on the aaaa ro« cannot aound at 
the iaaa tiee r 

Low To« (LT> / Hid Ta< ( PTH / «l*ht Toa (HT) / Tlabale [TB) 

RLm Shsi IRI.II / Hand Clap ■ HC P :■ 

Open Hi -Hat I OH I / Clmea Hi-Hat ! "il ! 

Lo*r Conga (LCD) / Hlftht Con*-* [SCO 

Low Cowbell (LCB) / Hifht Co* be 11 (HCB1 

Creah Cyabal (CGI / Ride Cp*b*L (SO 

i2 Mote rvjeber for each inetruaant can be chanced. 

*3 Recognized while the unit ia in 'STOP' in the Track ?Iar »o<ie. 

«4 When the SYNC aode ia *et at MIDI, 



JUIM. IWBO 



Rhythm machine 



M 



odel TR-505 MIDI Implementation Chart 



Date:Jan.31 1986 
Version: 1 .0 





Transmitted 


Recognized 


Remarks 




Basic Default 
Channel Changed 


1-16 
1-16 


1-16 

1-16 


Memorized 


Default 
Mode Messages 
Altered 


Mode 3 


Mode 1 
OMNI ON/OFF 




Note 

Number True voice 


25-99 *1 

$ $ £ * £ # fi $ * £ $ $ j^j|( 


25-99 *1 


assigns to each 
rhythm voice 


Velocity Note ON 
Note OFF 


O 9n v=48-127 
X 9n v=0 


9b v = 1-127 

X 


n = lnst CH *2 
b = Basic CH 


After Keys 
Touch Chs 


X 
X 


X 

X 




Pitch Bender 


X 


X 




Control 
Change 


X 


X 




Prog 

Change True # 


X 


X 




System Exclusive 


X 


X 




System Song Pos 
Song Sel 
Common Tune 


o 
c 

X 


O SYNC mode^MIDI 
O SYNC mode^MIDI 

X 


0-5 


System Clock 
Real Time Commands 


o 

O 


O SYNC mode = MIDI 
O SYNC mode = MIDI 




Aux Local ON /OFF 

All Notes OFF 
Mes- Active Sense 
Sages Reset 


X 
X 
X 
X 


X 
x 

X 
X 




Notes 


* 1 Transmitted and recognized note numbers can 

be assigned by panel operation. 
*2 Transmit channel # for each instrument can be 

changed to 1-16 by panel operation. 



Mode 1 : OMNI ON, POLY 
Mode 3 : OMNI OFF, POLY 



Mode 2 : OMNI ON, MONO 
Mode 4 : OMN! OFF, MONO 



O : Yes 
x ; No 



10